Hi:
i assume you mean a lipstick naso, or naso lituralis? AS most of the larger naso get tail streamers.
Anyway yes to my knowledge all nasos are reef safe. One word of note on the nasos....they all get real big (like 15-24"), So a larger tank is required.
They are extremely active fish, and love all types of food, beside veggies. I have a Naso vlamingi and its around a ft long, almost half way there, and my 180gal tank appears quite small for his tang.
my opinion
frank